They determinedly beat about the bush as a nod is as good as a wink to a blind horse.

Jill: I keep hinting to the boss that I deserve a raise, but he doesn't seem to get the point.

Jane: I'm not surprised. A nod's as good as a wink to a blind horse.

A nod is as good as a wink to a blind horse, so they say, and since there are six sightless steeds in the West End revival of Peter Shaffer's overwrought 1973 drama "Equus," you can just imagine how much winking and nodding goes on.